# AIA Guide to Boston vs CitySign

The clearest difference is rating: CitySign at 5.0 against AIA Guide to Boston's 4.5. CitySign also leads on update cadence (every 3 weeks vs every 8 months) and iOS requirement (12.0 vs 15.1). AIA Guide to Boston's advantage is ratings volume (16 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

CitySign holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: AIA Guide to Boston has 16 ratings behind it against 1, so its average is the more settled of the two.

AIA Guide to Boston ships an update every 8 months, CitySign every 3 weeks. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | AIA Guide to Boston | CitySign |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (16 ratings)](https://appshunter.io/ios/app/aia-guide-to-boston/id1136848990/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/citysign/id1455833706/reviews)** |
| Number of ratings | **16** | 1 |
| Positive reviews | 81.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 150 MB | 56 MB |
| Requires iOS | 15.1 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Thomas Pounds](https://appshunter.io/developer/1541934979) | [happy ship](https://appshunter.io/developer/1228286715) |

## What reviewers say

### AIA Guide to Boston

[App page](https://appshunter.io/ios/app/aia-guide-to-boston/id1136848990)

Explore Boston's architecture and urban landscape with this comprehensive digital guide. Discover over 1,200 landmarks, historical buildings, and parks, with GPS-enabled features and integrated directions. Perfect for residents and visitors interested in design and history.

**Highlights:** 1,200+ landmarks, buildings, and parks, Neighborhood and architect guides, GPS-enabled site discovery, Integrated directions, Walking and site tours, Color images and descriptions

**Features:** macOS Compatibility

**In-app purchases:** none


### CitySign

[App page](https://appshunter.io/ios/app/citysign/id1455833706)

Augmented reality app lets you place iconic city signs in your photos. Move, scale, and rotate signs for realistic pictures. Share your creations with friends.

**Highlights:** Place virtual city signs, Augmented reality integration, Move, scale, and rotate signs, Take realistic photos, Share photos with friends, Multiple city sign options

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AIA Guide to Boston free?

AIA Guide to Boston is free to download, with no in-app purchases.

### Is CitySign free?

CitySign is free to download, with no in-app purchases.

### Which has better reviews, AIA Guide to Boston or CitySign?

CitySign is rated higher. AIA Guide to Boston averages 4.5 out of 5 from 16 ratings, while CitySign averages 5.0 from 1 ratings.

### Do AIA Guide to Boston or CitySign have ads?

Neither AIA Guide to Boston nor CitySign shows ads.

### Which is updated more often, AIA Guide to Boston or CitySign?

AIA Guide to Boston ships an update every 8 months, and CitySign every 3 weeks. Most recently, AIA Guide to Boston was updated on November 6, 2026 and CitySign on November 2, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*